Circular saw



FIG. 1 is a front left perspective view of the circular saw of the present invention;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front right perspective view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a rear end view thereof;

FIG. 7 is a front-end view thereof;

FIG. 8 is a top view thereof; and,

FIG. 9 is a bottom view thereof. 

The ornamental design for a circular saw, as shown and described. 